Semester attendance calculator
Track attendance across all your subjects in one place. This semester attendance calculator lets you enter each subject separately — with its own classes attended and total held — and shows the attendance percentage for every subject, which ones are above or below the threshold, and an overall semester average. All calculations run in your browser with nothing stored or transmitted.
| Subject | Attended | Total | % | Can miss | Must attend | Status | |
|---|---|---|---|---|---|---|---|
| — | — | — | — | ||||
| — | — | — | — |
All calculations run in your browser. Nothing is stored or transmitted.
How the Semester attendance calculator works
The semester calculator computes attendance for each subject individually using (attended ÷ total) × 100. Each subject has its own classes attended and total held, because attendance is tracked per subject in most institutions.
The overall semester attendance is calculated by summing all attended classes across subjects and dividing by the total of all classes held across subjects. This gives a single percentage that represents your attendance across the entire semester.
For each subject, the calculator shows whether you are above or below the threshold, how many classes you can still miss, and how many you need to attend consecutively if you are below.
The threshold applies to each subject individually and to the overall semester figure. Some institutions require 75% in each subject, not just overall — check your institution's policy.
Worked example
A student has 4 subjects. Mathematics: 40/50, Physics: 35/48, Chemistry: 42/45, English: 38/52. The college requires 75% attendance in each subject.
Mathematics: (40 ÷ 50) × 100 = 80.00% — above 75%, can miss 3 more. Physics: (35 ÷ 48) × 100 = 72.92% — below 75%, needs 4 consecutive classes. Chemistry: (42 ÷ 45) × 100 = 93.33% — well above, can miss 11 more. English: (38 ÷ 52) × 100 = 73.08% — below 75%, needs 4 consecutive classes. Overall semester attendance: (155 ÷ 195) × 100 = 79.49% — above 75%, but Physics and English individually fall short.
Common mistakes to avoid
Looking only at overall attendance
A student can have 80% overall attendance but be below 75% in one specific subject. Many institutions require the threshold in each subject individually. Check every subject, not just the average.
Using the same total for all subjects
Different subjects have different numbers of classes per week. A theory subject might have 4 classes a week while a lab has 2. Enter the correct total for each subject.
Not tracking the subject with the lowest attendance
Your weakest subject is the one most likely to cause problems. The semester calculator highlights which subjects are below the threshold so you can prioritize recovery.
Forgetting that recovery is per-subject
Attending extra classes in Mathematics does not help your Physics attendance. Each subject's attendance is independent. You need to attend the right classes for the right subject.